Enable the v2019-security and v2019-updates stable repositories
The new release flow states that stable releases need two extra APT repositories to be configured by default:
-
$RELEASE-security(e.g.v2019-updates) for urgent security fixes, all products should have this enabled -
$RELEASE-updates(e.g.v2019-updates) for updates to be included in the next point release, usful for testing, actual products should wait for the updates to be published as part of the point release